Casting-machine.



PATENTED APR. 16, 1907.

H. JONES. CASTING MACHINE. APPLICATION FILED Dzo.5.19os.

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PATENTED APR. 16, 1907.

Y H. JONES. CASTING MACHINE APPLICATION FILED DBc.5.19o5.

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. metal molds which have a swing down lower i form 9 on which the molds 10 are mounted.

UNITED sTATEs PTENT onirica.

HARRY JONES, OF CHICAGO, ILLINOIS, ASSIGN OR TO AMERICAN BRAKE SHOE & FOUNDRY COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPO- RATION OF NEW JERSEY.

CASTING-MACHINE.

Specification of Letters Patent.

Patented April 16, 1907.

Application filed December 5, 1905. Serial No. 290,385.

To all whom, it may con/cern:

B it known that I, HARRY JoNE's, a citizen of the United States, residing at Chicago,- in the State of Illinois, have invented certain new and useful Improvements in Casting- Machines, of whichthe following isa speciiieation.4

The object of this invention is to rovide a construction whereby a mold of t e swing down type may be operated by the relative rotary movement of the mold and a cam track. Further the invention is designed to provide a machine wherein a plurality of molds may be operated successively by the same mechanism, and also to provide a means for intermittently operating the mechanism. The invention is illustrated in the accompanying drawings, wherein- Figure lis a section through the center of the machine;

Iigure 2 is a plan view on a smaller scale, an

Figure 3 is an enlarged detail view showing the mechanism for intermittently rotating the carrying frame'.

The invention is designed to be used with mold portion for releasing the casting and consists of a frame rotating in a horizontal plane and carrying a number of molds of the type above referred to. The frame is adapted to rotate and carry the molds over a cam track which is so shaped that at certain osi tions the lower swing section of the mold, will be in closed position for pouring and at other positions of the frame will be allowed to drop down and release the casting. The frame 1s provided with a novel mechanism for intermittently rotating it.

As shown in the drawings, 4 is a rotatable frame of considerable diameter which consists of a central supporting casting 5 sup# ported at the base ii a thrust bearin 6, and at the top from an overhead beam and5 a bearin 7, and a plurality of radiating arms 8 boted to the central casting and carrying at their extremities an annular supporting p at- As previously set forth, the molds are of the swing down type, and consist of an upper portion 1 1 mounted upon the platform 9 and a lower swin ing portion 12 pivoted at 13 and carrying an operated by a roller 14 which i bears against a track 15. As shown in the drawings, this track is of rectangular cross section and is placed immediately below the revolving frame, and is adapted, as the mold moves thereover, to successively raise and lower the hinged member. At a point opposite the pouring device 16, the track approaches the mold and runs parallel to the path -of the mold for a short distance. It then gradually recedes from the frame and at the same time twists until it has assumed a horizontal position and is also carried in to ward the center of the frame in order to allow the swin g member of the mold to assume a vertica position and allow the casting to drop out. The roller 14 is flanged in order that it ma not be displaced from its position on the ra' and ermits of the use of a much narrower rail than would otherwise be the case, as there is a tendency due to the vibration of the machine to move the mold laterally a certain extent. A proper receptacle (not shown) may be provlded beneath the frame for the reception of the castings as they drop. The frame may be rotated in a number of ways or may be turned by hand but the preferred form is as shown, a ratchet mechanism. This consists of a ratchet-I Wheel 17, secured to the axis of the rotatable frame and an operating lever 19 pivoted at the same point, and provided with a catch 18 for engaging the teeth of the ratchet wheel. This catch consists of a slidable block fitting into a yoke 20 of the lever 19 and having a sprin 21 for keepin the catch normally engage with the ratel iet wheel. The operating means for the lever 19 is a fluid operated piston 22 shown in detail in Figure 3. This piston is connected by means of its rod and the link 23 to the arm 19, and is operated in one direction by means of fluid admitted into the cylinder and in the opposite direction by means of the spring 24. Fluid is admitted to the cylinder by means of the supply pipe in which is placed a three-way valve 25. The handle 26 of this three-way valve is operated by means of two cords passing over pulleys 27 and extending to a position in proximity to the molds in which position they may be operated. The left hand end of the handle when turned by the cord 28 admits fluid to the cylinder and through the various connections turns the frame a cer- .Amin

, is attached to the other side of the handle and also to the end ofthe catch 18 is pulled bringing the valve first to a position in which no fluid isadmitted and stopping the advance of the piston, and by a further movement opening the exhaust and allowing the spring 24 to operate the piston in the other direction, thereby bringing the lever 19- to its original position. This backward movement of the lever is possible as the cord 29 extended withdraws the catch 18.

The operation of the. machine will be obvious without further explanation and it will be apparent that the machine provides for the efficient and rapid operation of a large number of molds and requires a minimum amount of attention from the operator.

Having thus described my invention and illustrated its use, what I claim as new, and

desire to secure by Letters Patent, is the following:

1. In combination, a rotatable frame carrying a mold thereon, comprising an upper member and a swinging lower member, a pouring means opposite one point of travel of the'rotatinfr frame, a cam track Vbeneath the rotatable iPrame and contacting with the .swinging lower member and adapted to hold such lower member closed as the nl old passes the pouring means and later allow the lower member to swing open gradually in a downward direction to permit of the discharge of the casting by its own weight.

2. In combination, a rotatable frame earrying a plurality of molds thereon each c omrising an upper member and a swinging ower member, a pouring means opposite one point of travel of the rotatable frame, a cam track beneath the rotatable frame and contacting with such swinging members and adapted to hold the lower members closed as the mold passes the pouring means and later to allow such membersto swing open down- -wardly and discharge the castings by gravy3. In combination, a rotatable frame carrying a mold thereon, -comprising an upper member and a swinging lower member, a cam track beneath the rotatable frame contacting with such swinging member and adapted to hold the swinging member closed at that portion of the travel of the rotatable frame at which the casting is to be done, to allow the mold to swing open downwardly to discharge the casting by gravity and finally to close it again, preparatory to another operation.

4. In combination, a rotatable frame carryingg plurality of moldsjhereon each comprising an upper member and a swingingl ower member, a cam track beneath the rotatable frame and contacting with the swinging member, and adapted to hold such members closed at that portion ofthe travel of the ro.- tatable frame at which the pouring is to be done, then allow the molds to swing open downwardly to discharge the casting, by gravity and finally to close them again, preparatory to another operation.

5. In combination, a rotatable frame carrying arnold thereon, havinga swinging lower member provided with a flanged wheel, and a cam track whose edge fits the flanged wheel andis substantially vertical and close enough to the mold at one portion of its travel to keep the lowerhjnged portion closed land in position and in sueceding ositions gradually changing from the verticaposition to a horizontal one, so removed that the lower hinged portion may swing open and then be closed again by the first portion of the cam track.

6. .In combination, a rotatable frame carrying a plurality of molds thereon, each having a Swingin lower member provided with a flanged whee and a cam track whose edge fits the flanged wheels, and is substantially vertical and close enough to the molds at one ortion of the travel of the molds to keep the ower hinged portions closed and in position for casting and in a succeeding position gradually changing from the vertical position to a horizontal one so removed that the lower hinged portions may swing open and then be closed again by the first portion of the cam track. v

7. In combination, a rotatable frame carrying an automatically releasable casting machine, and 'a mechanism for intermittently rotating the frame, comprising a ratchet gear having a catch and an operating lever anda piston connected thereto, fluid operated in one direction and spring operated in the other, the fluid supply having a threeway valve and a connection between the catch and the three-way valve so that a movementl of the valve handle in one direction admits fluid and operates the piston, While a movement in the other direction cuts off the fluid, opens the exhaust and withdraws the catch.

8. In combination, a rotatable frame carrying a mold thereon having a lower member provided with a flanged engaging member, and a cam track whose edge fits the flanged engaging member and is substantially vertical and close enough to the mold at one portion of its travel to keep the lower hinged member closed andin osition and in succeeding positions gradua ly changing from the vertical osition to a horizontal one, so removed that the lower hinged member may swing open and then be closed again by the first portion of the cam track.

9. In combination, a rotatable frame car- 4rying a mold thereon comprising an upper member and a swinging lower member rovided with a wheel, and a cam trackw ose edge engages the wheel and is close enough .to

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the mold at one portion of its travel to keep I signed my name in the presence of the two the lower hinged member closed and in poslsubscribed Witnesses. tion and in succeedin positions is so removed that the lower -nged member may .1

5 swing open and then be ,closed again by the Witnesses:

rst portion ofthe cam track. l PAUL CARPENTER, In testimony whereof I have hereunto i ALBERT G. MILLER.

HARRY JONES. 

